In the video, a man stood beside a shallow swamp. He was tapping an empty plastic bottle with a wooden stick, like a drum, while another man lined the feed near the water. After the man stopped playing, a school of fish came out.

The seemingly empty swamp was suddenly crowded with fish, flipping and swimming towards their food. A fist-sized chunk of feed was gone in minutes!

According to a netizen Dominic Mark Samera, the fish in the video were African catfish.